Re: [Powerpc / eHEA] Circular dependency with 2.6.29-rc6

2009-02-25 Thread Peter Zijlstra
On Wed, 2009-02-25 at 18:07 +0100, Jan-Bernd Themann wrote: > Hi, > > yes, sorry for the funny wrapping... and thanks for your quick answer! > > Peter Zijlstra wrote: > > On Wed, 2009-02-25 at 16:05 +0100, Jan-Bernd Themann wrote: > > > > > >> - When "open" is called for a registered network d

Re: [Powerpc / eHEA] Circular dependency with 2.6.29-rc6

2009-02-25 Thread Jan-Bernd Themann
Hi, yes, sorry for the funny wrapping... and thanks for your quick answer! Peter Zijlstra wrote: > On Wed, 2009-02-25 at 16:05 +0100, Jan-Bernd Themann wrote: > > >> - When "open" is called for a registered network device, port->port_lock >> is taken first, >> then ehea_fw_handles.lock >> -

Re: [Powerpc / eHEA] Circular dependency with 2.6.29-rc6

2009-02-25 Thread Peter Zijlstra
On Wed, 2009-02-25 at 16:05 +0100, Jan-Bernd Themann wrote: > - When "open" is called for a registered network device, port->port_lock > is taken first, > then ehea_fw_handles.lock > - When "open" is left these locks are released in a proper way (inverse > order) So this has: port->port_lock

Re: [Powerpc / eHEA] Circular dependency with 2.6.29-rc6

2009-02-25 Thread Jan-Bernd Themann
Hi, we have investigated this problem but didn't understand to root cause of this problem so far. The things we observed: - The warning is only shown when the ehea module is loaded while the machine is booting. - If you load the module later (modprobe) no warnings are shown - Machine never actuall

[Powerpc / eHEA] Circular dependency with 2.6.29-rc6

2009-02-23 Thread Sachin P. Sant
While booting 2.6.29-rc6 on a powerpc box came across this circular dependency with eHEA driver. === [ INFO: possible circular locking dependency detected ] 2.6.29-rc6 #2 --- ip/2174 is trying